dmaengine: qcom: hidma: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230919133207.1400430-36-u.kleine-koenig@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c
index 834ae519c15de052eacc2d16c2097a0f6707bf28..f4659553945b65e971bdf4336a975e470b2648da 100644 (file)
--- a/drivers/dma/qcom/hidma.c
+++ b/drivers/dma/qcom/hidma.c
@@ -915,7 +915,7 @@ static void hidma_shutdown(struct platform_device *pdev)
 
 }
 
-static int hidma_remove(struct platform_device *pdev)
+static void hidma_remove(struct platform_device *pdev)
 {
        struct hidma_dev *dmadev = platform_get_drvdata(pdev);
 
@@ -935,8 +935,6 @@ static int hidma_remove(struct platform_device *pdev)
        dev_info(&pdev->dev, "HI-DMA engine removed\n");
        pm_runtime_put_sync_suspend(&pdev->dev);
        pm_runtime_disable(&pdev->dev);
-
-       return 0;
 }
 
 #if IS_ENABLED(CONFIG_ACPI)
@@ -960,7 +958,7 @@ MODULE_DEVICE_TABLE(of, hidma_match);
 
 static struct platform_driver hidma_driver = {
        .probe = hidma_probe,
-       .remove = hidma_remove,
+       .remove_new = hidma_remove,
        .shutdown = hidma_shutdown,
        .driver = {
                   .name = "hidma",